Billing and Coding: Vitamin B₁₂ Injections

This billing and coding article defers coverage determination for vitamin B12 injections to LCD L33967 and states that injections are covered only when reasonable and necessary per that LCD. Detailed documentation is required — legible medical records with patient identifiers, provider signature, supporting ICD-10/CPT/HCPCS coding, progress notes, and serum B12 results (unless given with pemetrexed or pralatrexate, in which case a serum B12 is not required but treatment with those agents must be documented). Providers must not bill non-covered services as covered and must use the appropriate modifier when billing non-covered services.

"Vitamin B12 injections are covered only when reasonable and necessary per Local Coverage Determination L33967."

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